import React, { useState, useEffect, useCallback, useMemo, useRef } from 'react';

function Com(props) {
  const [xxx, setXxx] = useState('')

  useEffect(() => {
    console.log('函数组件')
  }, [])

  return (
    <div className='content'>
      这里只是工作台，完全不知道要干嘛
    </div>
  )
}

export default Com